Coke oven



Jfme 24 1924- COKE OVEN Filed Oct. 26. 1920 Wwfw/ AT ORA/y Patented.June 24, 192-,

roKUsABUao saro, or os'arrn, JAPAN.

COKE ovmv.

VApplication 1ed`0ctober-26, V1920. Serial No. 419,765.

To all whom it may Concern.'

Be it known that I, ToKUsABUno Saro, a subject of the Emperor of Japan,and a resident of No. 1061, Tamade-Machi, Nishinari- Gun, Osaka, Empireof Japan, have invented a new and useful Improvement in Coke Ovens, ofwhich the following is a specification.

This invention relates to improvements in lcoke-ovens and means forsupplying air thereto, and refers particularly to means for supplyingair to coke-ovens of the type in which a supply of air is led into theoven, at a convenient point between the grate and the outlet fluesthrough a series of apertures or perforations by which the air isdistributed evenly through the gases. The air is preferably initiallyheated by passing through fines, surroundingxthe oven.

The object of this invention is to provide a simple and improvedair-supply means of this type, which is simple to manufacture, isefficient in operation, and effects a very thorough distribution of theair. The invention essentially comprises a hollow'air-dis- Y tributingbox or chamber, formedk of firebrick or like fire-resisting material,and having a series of perforations in one face communicating with thehollow interior to which air, preferably under pressure, is supplied. y

This air-distributing means located at a suitable point in the oven, andcauses the air supply to be evenly distributed through the gaseousproducts of combustion to ensure the complete combustion thereof.

Suitable means are provided enabling the supply of air to be varied tocontrol the combustion.

In the accompanying drawings Fig. 1 is a vertical longitudinal sectionalview.

Fig. 2 is a horizontal sectional view of the same.

With reference to thefiguresof the drawing, the air Yspraying device ismade of any suitable refractory material and has a plurality ofstaggered or honey-comb like perforations 2 in its front part, and anair chamber 3 formed in the body of the device communicates with theatmosphere or with a supply of air under pressure.

The grouping` of the perforations above referred to is one feature ofthis invention. The velocity of the air spray passing through theseperforations should be considerable on Vaccount of the very narrowpassages, and

in fact is so high that the air spray will cut the fiame transverselyinstead of flowing along theV line of flame, so that any gaseous matterleft unburnt in an oven is bound to come in contact with these highspeed sprays of heated air, and the result is the complete combustion ofthe fuel. The amount of hot air supplied is controlled by means of aregulating door fitted at the entrance of the air chamber, or othersuitable means.

rIhe efficiency of a coke oven, can be considerably increased by the useof this device.

Four of the air distributing devices are shown located in the walls ofthe oven, chamber 16, two being located at the sides of the end wallremote from the outlet flues, andV twobeinglocated in the side walls.Air is supplied through regulating valves 4, of any suitable type, andpassages 5 in the walls of the oven, the air being heated as it passesthrough these passages and being distributed from the chambers 3 throughthe perforations 2.

The perforations 2 are preferably inclined towards the outlet fiues, asshown in the.

drawings, so that the air emerging from the perforations assists thenatural draught in the oven, and the air is thoroughly distributedthrough and mixed with the gases generated in the chamber 16, so thatthe combustion of the gasesris rendered *com-k plete. 16 bythe fiue orfiues 17 and is led along through the walls of the oven before reachingthe discharge chamber 18.

What I claim is A coke oven having air inlet ducts in one of its wallsand also having air distributing chambers on the inner side of said walland to which the said ducts respectively lead, one of said chambersbeing arranged in one front corner of the oven and having a wallarranged diagonally in said corner and prg- The burnt gases leave thechamber wall, said chamberalso having anoutlet flueV provided with anintake toward which the said openings of said air chambers are directed.

In testimony whereof I aix my signature in presence of two witnesses.

TOKUSABURO SATO. Witnesses:

W. CHITARAK, LETsUJno KOTANI.

